I am a musician from Portugal and have been using your app for at least 3 years now. Before I used Live Tracks but found it too unstable and the bug fixes weren't always prompt. Needless to say, working with an app that can fail you on stage is not the way to go. Through my online searches I found your app and I never turned back. I have advised many of my colleagues on how good your app is and most have purchased the app and use it today.
It saddens me that you don't seem to have the time anymore to keep app improvements going and we are left with the current version. I can't complain. I am quite happy with all that this app does but I just hope that my iPad iOS doesn't cause any conflict next time there's an update.
I just want to tell you how pleased I am to work with this app and I do sincerely hope that this app, like many others, doesn't have a similar fate and disappear completely. It is a must have not only for musicians but for any artist, producer, theatre company, etc. it is very powerful and could very easily become your 1st source of income with the right marketing. Many musicians I know are working in the most primitive ways as far as lyrics and playbacks are concerned but they also don't know what's out there. Stage Traxx deserves to be on the forefront of apps for music/lyric applications. You could always sell your product to a major brand and let them do further development but personally, I think you should take the risk and invest all your time on this because I haven't found an app even as close to yours.
Good luck and thank you for making my life so much easier